Autumn isn’t the only time to plant bulbs. Certain varieties of bulbs can be planted in the Spring for flowers that will bloom through the Summer and into the Fall.
This article from Home for the Harvest has a long list of Spring planted bulbs and a lot of good advice on how to plant them: https://www.homefortheharvest.com/bulbs-to-plant-in-spring/
This article from Almanac.com has a helpful chart on when, where, and how to plant your Spring planted bulbs, as well as a few extra tips: https://www.almanac.com/summer-flowering-bulbs-chart
Although this article from bobvila.com mentions the same flowers as above, there are some helpful hints and links: https://www.bobvila.com/articles/bulbs-to-plant-in-spring/